Data Types

Let's have a look at Data Types in C Language. Data types are common in every programming language. There are five basic data types which we use in our programs for beginners. As we get in Advance, we can try the other data types too.

1. int (Integers) : a whole number
Ex. 0, -7, 8
Size : 2 bytes or 4 bytes

2. float (Floating point value) : numbers with fractional part.
Ex. 2.34, 5.19
Size : 4 bytes

3. double : Double precision floating value
Size : 8 bytes

4. char (Character) : a single character
Ex. A, a
Size : 1 byte

5. void : valueless

int, float, char are fundamental data types and arrays, pointers, structures and enums are derived data types. We can also have signed and unsigned data types. Let's not get in that detail right now. 

This is the basic knowledge required for the beginners.